Respuesta :

Gyeong

SOLUTION:

1 : 5 = 5 : 45

__________

Aisin

Answer:

5

Step-by-step explanation:

We can write 1:5 as 1/5

1/5 = x/45
1x9/5x9 = x/45
9/45 = x/45 => x=5

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